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Reduction of implant loading using a modified centric occlusal anatomy
1Department of Graduate Prosthodontics, College of Dentistry, New York University, New York, USA.
The International Journal of Prosthodontics
|May 20, 1998
Summary
Modifying occlusal anatomy can reduce implant loading forces. Adjusting articulator settings creates flat fossae, directing forces vertically to the bone and preventing implant overload.
Area of Science:
- Dental Implantology
- Biomechanics
- Occlusal Anatomy
Background:
- Occlusal anatomy significantly influences forces transmitted to dental implants.
- Lateral forces on implants can arise from vertical occlusal forces on cusp inclines.
- Understanding these forces is crucial for long-term implant success.
Purpose of the Study:
- To derive implant loading forces as influenced by occlusal anatomy.
- To investigate methods for reducing lateral forces on implants.
- To propose modifications for decreasing implant loading.
Main Methods:
- Analysis of resultant lines of force with varying occlusal surfaces.
- Suggested methods include reducing cusp inclines and modifying occlusal anatomy.
- Utilized adjustable articulators with modified settings to create 1.5-mm flat fossae.
Main Results:
- Clinical examples verified the accuracy of modified articulator settings.
- Modified occlusal anatomy resulted in more vertical forces to supporting bone.
- Reduced cusp inclinations lessened torque on the prosthesis, implant, and bone.
Conclusions:
- Implant loading can be effectively reduced by modifying occlusal anatomy and impact area.
- Simple modifications to articulator settings can optimize force distribution.
- Preventing implant overload is achievable through these occlusal modifications.